The Evaluation of Carotid Intima Thickness in Clinical and Subclinical Hypothyroidism and Effects of Thyroid Hormone Treatment
American Journal of Clinical and Experimental Medicine
Volume 2, Issue 4, July 2014, Pages: 59-63
Received: Apr. 25, 2014; Accepted: Jun. 17, 2014; Published: Jun. 30, 2014
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Ayşe Neslin Akkoca, Mustafa Kemal University Medical School, Department of Family Medicine, Hatay, Turkey
Zeynep Tuğba Özdemir, Bozok University Medical School, Department of Internal Medicine,Yozgat,Turkey
Gül Soylu Özler, Mustafa Kemal University Medical School, Otorhinolaryngology Department,Hatay,Turkey
Laika Karabulut, Gastroenterology Specialist, Okmeydanı Research and TrainingHospital, Istanbul, Turkey
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Objectives: In this study, our aim was to investigate the CA-IMT in clinical hypothyroidism(CH) and subclinical hypothyroidism(SCH) and the effects of L-thyroxine replacement. Materials and methods: The study group consisted of 20 patients with clinical hypothyroidism(CH group) and 20 patients with subclinical hypothyroidism(SCH group) and 20 patients with with normal thyroid hormone function tests (control group). Serum TSH, fasting glucose, lipid profile(total cholesterol, HDL-cholesterol, LDL-cholesterol, and triglyceride),HbA1c,insulin,HOMA and carotid intima media thickness(CA-IMT) of all subjects were measured at admission. Thereafter, all hypothyroid patients received L- thyroxine treatment. The previous tests were re-examined after achievement of euthyroidism for 6 months. The results of the tests before and after L- thyroxine treatment were compared. Results: The levels of TSH, total cholesterol, triglyceride, LDL for CH and SCH group were statistically different before and after treatment(p≤ 0.05). The levels of glucose, HDL,VLDL, HbA1c, insulin and HOMA for CH and SCH group were similar before and after treatment(p≥ 0.05). The difference of CA-IMT for both sides before and after treatment was statistically significant(p ≤0.05). Conclusion: This study suggests that subjects with clinical and subclinical hypothyroidism are characterized by an increment in the CA-IMT resulting from an adverse lipid profile, which can be reversed by thyroid hormone replacement. So, thyroid hormone replacement may be helpful to prevent or at least slow down atherosclerosis in hypothyroid subjects.
Hypothyroidism, L- thyroxine, CA-IMT
To cite this article
Ayşe Neslin Akkoca, Zeynep Tuğba Özdemir, Gül Soylu Özler, Laika Karabulut, The Evaluation of Carotid Intima Thickness in Clinical and Subclinical Hypothyroidism and Effects of Thyroid Hormone Treatment, American Journal of Clinical and Experimental Medicine. Vol. 2, No. 4, 2014, pp. 59-63. doi: 10.11648/j.ajcem.20140204.11
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